3min chapter

Lex Fridman Podcast cover image

#137 – Alex Filippenko: Supernovae, Dark Energy, Aliens & the Expanding Universe

Lex Fridman Podcast

CHAPTER

The Inflation Theory

If a thing was a hyper sphere, it's very small, not a point. How can that thing be infinite? Well, it expands exponentially. That's what the inflation theory is all about. But in an exponentially expanding universe, if you actually try to make this measurement, you send light out to try to see it curve back around and hit you in the back of the head. If it's next potentially expanding universe, there amount of space remaining to be traversed is always a bigger and bigger quantity. So observationally or operationally, it can be thought of as being influenced.

00:00

Get the Snipd
podcast app

Unlock the knowledge in podcasts with the podcast player of the future.
App store bannerPlay store banner

AI-powered
podcast player

Listen to all your favourite podcasts with AI-powered features

Discover
highlights

Listen to the best highlights from the podcasts you love and dive into the full episode

Save any
moment

Hear something you like? Tap your headphones to save it with AI-generated key takeaways

Share
& Export

Send highlights to Twitter, WhatsApp or export them to Notion, Readwise & more

AI-powered
podcast player

Listen to all your favourite podcasts with AI-powered features

Discover
highlights

Listen to the best highlights from the podcasts you love and dive into the full episode